Anyone has any idea what this Buddhism about? Apart from the Mahayana tradition with the idea that everyone had Buddha nature, anything else that differs and not really accepted in Theravada tradition?

Bhikkhus, if you develop and make much this one thing, it invariably leads to weariness, cessation, appeasement, realization and extinction. What is it? It is recollecting the Enlightened One. If this single thing is recollected and made much, it invariably leads to weariness, cessation, appeasement, realization and extinction.Anguttara-Nikaya: Ekanipata: Ekadhammapali: PañhamavaggaVSMVMMWBBTBHTWTBTMy Page